Saint-Denis-sur-Richelieu Weather in September

Saint-Denis-sur-Richelieu in September sees high temperatures, with highs around 22°C (72°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 100 mm (3.9 in) on average, so pack waterproofs just in case.

Rainfall in Saint-Denis-sur-Richelieu in September

Based on our climate data of the past 30 years, about 11 days of rain are anticipated, with 100 mm (3.9 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Saint-Denis-sur-Richelieu in September

Daytime highs in Saint-Denis-sur-Richelieu in September reach 22°C (72°F), with nights around 10°C (50°F). Overall, the month follows a fairly predictable daily temperature pattern. At 10°C (50°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Saint-Denis-sur-Richelieu in September

The month experiences a moderate amount of sunlight, with 183 hours of sunshine. This provides a nice balance between sunshine and clouds.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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For a detailed overview over the year and the best time to visit Canada, check out our Saint-Denis-sur-Richelieu's climate page.

Saint-Denis-sur-Richelieu Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 37%  

Precipitation 100 mm (3.9 in)  

Rainy days 11 days  

Humidity 60% *  

Sunshine 183 hours *  

Percentage Sunshine 49% *  

* Data from: Montréal, Canada (44 KM, 27 Miles).

What to Wear in Saint-Denis-sur-Richelieu in September

For Saint-Denis-sur-Richelieu in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Saint-Denis-sur-Richelieu in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Canada, check out our Saint-Denis-sur-Richelieu's climate page.

More climate data for Saint-Denis-sur-Richelieu

Temperature Rainfall Sunshine Humidity

See the full Saint-Denis-sur-Richelieu climate overview or explore weather in Canada.